Click the "Password" button at the bottom of the "Game mode" menu. Then, activate the following cheats by entering the corresponding codes:

CHEAT FUNCTION - CHEAT CODE
Higher difficulty opponents and 5 credits per match - muito
Permanent speed except in
Arcade, Mini-game or Survival modes - rapido
Permanent regeneration and extra damage except in
Arcade, Mini-game or Survival modes - vida
Permanent hyper regeneration - macumba
Type k1 or k2 during match to KO that player - tester
Start survival mode on round 10 - zum
Speed, health and hyperspeed - uber
Relocks all unlocked content - morte